namespace :branding do desc 'Generate necessary graphic assets for branding from source SVG files' task generate: :environment do Rake::Task['branding:generate_app_icons'].invoke Rake::Task['branding:generate_app_badge'].invoke Rake::Task['branding:generate_github_assets'].invoke Rake::Task['branding:generate_mailer_assets'].invoke end desc 'Generate PNG icons and logos for e-mail templates' task generate_mailer_assets: :environment do rsvg_convert = Terrapin::CommandLine.new('rsvg-convert', '-w :w -h :h :input -o :output') output_dest = Rails.root.join('app', 'javascript', 'images', 'mailer') # Displayed size is 64px, at 3x it's 192px Dir[Rails.root.join('app', 'javascript', 'images', 'icons', '*.svg')].each do |path| rsvg_convert.run(input: path, w: 192, h: 192, output: output_dest.join("#{File.basename(path, '.svg')}.png")) end # Displayed size is 34px, at 3x it's 102px rsvg_convert.run(input: Rails.root.join('app', 'javascript', 'images', 'logo-symbol-wordmark.svg'), w: (102 * (261.0 / 66)).ceil, h: 102, output: output_dest.join('wordmark.png')) # Displayed size is 24px, at 3x it's 72px rsvg_convert.run(input: Rails.root.join('app', 'javascript', 'images', 'logo-symbol-icon.svg'), w: (72 * (79.0 / 75)).ceil, h: 72, output: output_dest.join('logo.png')) end desc 'Generate light/dark logotypes for GitHub' task generate_github_assets: :environment do rsvg_convert = Terrapin::CommandLine.new('rsvg-convert', '--stylesheet :stylesheet -w :w -h :h :input -o :output') output_dest = Rails.root.join('lib', 'assets') rsvg_convert.run(stylesheet: Rails.root.join('lib', 'assets', 'wordmark.dark.css'), input: Rails.root.join('app', 'javascript', 'images', 'logo-symbol-wordmark.svg'), w: (102 * (261.0 / 66)).ceil, h: 102, output: output_dest.join('wordmark.dark.png')) rsvg_convert.run(stylesheet: Rails.root.join('lib', 'assets', 'wordmark.light.css'), input: Rails.root.join('app', 'javascript', 'images', 'logo-symbol-wordmark.svg'), w: (102 * (261.0 / 66)).ceil, h: 102, output: output_dest.join('wordmark.light.png')) end desc 'Generate favicons and app icons from SVG source files' task generate_app_icons: :environment do favicon_source = Rails.root.join('app', 'javascript', 'images', 'logo.svg') app_icon_source = Rails.root.join('app', 'javascript', 'images', 'app-icon.svg') output_dest = Rails.root.join('app', 'javascript', 'icons') rsvg_convert = Terrapin::CommandLine.new('rsvg-convert', '-w :size -h :size :input -o :output') convert = Terrapin::CommandLine.new('convert', ':input :output') favicon_sizes = [16, 32, 48] apple_icon_sizes = [57, 60, 72, 76, 114, 120, 144, 152, 167, 180, 1024] android_icon_sizes = [36, 48, 72, 96, 144, 192, 256, 384, 512] favicons = [] favicon_sizes.each do |size| output_path = output_dest.join("favicon-#{size}x#{size}.png") favicons << output_path rsvg_convert.run(size: size, input: favicon_source, output: output_path) end convert.run(input: favicons, output: Rails.root.join('public', 'favicon.ico')) apple_icon_sizes.each do |size| rsvg_convert.run(size: size, input: app_icon_source, output: output_dest.join("apple-touch-icon-#{size}x#{size}.png")) end android_icon_sizes.each do |size| rsvg_convert.run(size: size, input: app_icon_source, output: output_dest.join("android-chrome-#{size}x#{size}.png")) end end desc 'Generate badge icon from SVG source files' task generate_app_badge: :environment do rsvg_convert = Terrapin::CommandLine.new('rsvg-convert', '--stylesheet :stylesheet -w :w -h :h :input -o :output') badge_source = Rails.root.join('app', 'javascript', 'images', 'logo-symbol-icon.svg') source_ratio = 79.0 / 75 output_dest = Rails.root.join('public') stylesheet = Rails.root.join('lib', 'assets', 'wordmark.light.css') rsvg_convert.run(stylesheet: stylesheet, input: badge_source, w: (192 * source_ratio).ceil, h: 192, output: output_dest.join('badge.png')) end end